Means for transferring slit webs



Sept. 3, 1929. H. A. w. WOOD MEANS FOR TRANSFERRING SLIT WEBS Original Filed June 11, 3,926

All llih lll F i I I I a Patented Sept. 3, 1929.

UNITED STATESPATENT OFFICE.

HENRY A. WISE WOOD, OF NEW YORK N. Y., A SSIGNOR TO WOOD NEWSPAPER MACHINERY CORPORATION, OF NEW YORK, N. Y., A CORPORATION OF VIRGINIA.

MEANS FOR TRANSFERRING SLIT WEBS.

Application filed June 11, 1926, Serial No. 115,244. Renewed February 6, 1929.

This invention relates to the transferring of slit webs from one folder to another. When such a slit web is run over the ordinary compensating rolls and the like, one half of the groupof webs has a tendency to buckle and to run differently in other ways from the other half. This invention is for the purpose of obviating this difficulty and to provide means whereby the two halves of the split web will run in different paths between two sets of nipping rolls and each web will be put under tension and the slack taken up independently of the other. Thus they will be run into the second pair of nipping rolls in register with each other and each one in a flat and smooth condition.

Reference is to be had to the accompanying drawing which is a View, somewhat diagrammatic in form, of two folders and their formers with a preferred form of this invention applied thereto.

I have shown two full webs running over two formers 10 one slit at the center by slitter 11. These webs pass to nipping rolls 12 in each case and normally the web on the left would go to the folding couple 13 on the left hand folder. The web from the right hand former and nipping roll goes to the corresponding folding couple on the other side and down through the fan to the delivery.

Now if it is desired to transfer the collecting of the web from either former to the opposite folder, this is done ordinarily by delivering the two halves of the web between the nipping rolls of one former and then taking them over a compensating roll to a point above the nipping rolls of the other former. Then they pass through one folding couple with the other web directly from the former that normally supplies this folder. It has been found in practice that the slit webs, as for example when a tabloid is run, do not both run smoothly over the compensating roll. The inside half of the group of webs buckles and the two halves do not run uniformly so they lose register. This is due to the fact that the slit tabloid does not have the folded edge. Consequently the way in which the compensating and other guide rolls take it is different.

For the purpose of avoiding this I separate the two slit groups of webs from the left hand nipping rolls 12. Then I carry them over two separate compensating rolls 15 and 16. Thus the two halves of the webs have different paths to run over and they can be regulated separately so as to register exactly with each other. This regulation consists in the adjustment of the compensating rolls by independent screw 17. These two slit webs are then brought into the right hand nipping rollers 12 and from that time on run in the usual way. In this manner, buckling is obviated and the webs are caused to run through as though they were originally separate webs.

It will be understood that this invention is capable of general use with other folders than the one indicated and that modification can be made in the mechanism by any person skilled in the art without departing from the scope of the invention as expressed in the claims. Therefore I do not Wish to be limited to all the details of construction herein shown and described, but what I do claim is 1. The combination with two formers and folding machines, and a pair of nipping rolls for each former for receiving the webs therefrom, of a slitter for one former for slitting the web into two separate parts, and means for guiding that part of the Web on one side of the slit from one pair of nipping rolls across to the other pair in one path and the parltl on the other side of the slit in a different pat 2. The combination with two formers and folding machines, a slitter for one former for slitting the web into two parts, and a pair of nipping rolls for each former for receiving the webs on opposite sides of the slit therefrom, of means for guiding the webs from one pair of nipping rolls across to the other pair in two separate paths, comprising a separate compensating roll for each half of the slit webs.

3. In a web folding device, the combination with a folder and means for slitting a web into two parts, both parts to be delivered to the folder of independent means for guiding both parts of the slit webs from the slitter to the folder each in a different path, and means for adjusting the length of each of said paths independently of the other.

4. The combination with two formers and folding machines, a slitter for one former for slitting the web into two parts, and a pair of nipping rolls for each former for receiving the Webs therefrom, of means forguiding the webs on opposite sides of the slit from one pair of nipping rolls across to the other pair in two separate paths, and means for adjustpassed, a second pair of: nipping rolls, and ing the length of each of said paths indetwo separate means for guiding the slit webs pendently of the other. i from the first pair of nipping rolls to the 1 5. In a Web folding device, the combinaother in independent paths. 5 tion with a folder and means for slitting a In testimony whereof I have hereunto af- Web to be delivered thereto, of a pair of nipfixed my signature. ping rolls through which both webs are HENRY A. WISE WQOD. 

